Punching and riveting machine



Aug. 5 1924.

W. E; REES PUNCHING AND RIVETING MACHINE Fil'ed Nov. 22. 1923 Patented Aug. 5, 19 24.

rrEo STATES tsaau PATENT OFFIC.

WILLIAM EDWARD REES, OF GANANOQUE, ONTARIO, CANADA, ASSIGNOR TO JUDSON L. THOMSON MANUFACTURING C0., 013 WALTHAM, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

PUNCHING AND RIVETING MACHINE.

Application filed November 22, 1923.

To all whom it may concern:

Be it known that I, VVILLIAM EDWARD REES, a subject of King George V of England, residing at Gananoque, in the Province of Ontario and Dominion of Canada,

have invented new and useful Improvements in Punching and Riveting Machines, of which the following is a specification.

This invention relates to machines for punching and riveting pieces of material together, and is especially adapted to punching and riveting a lining to a circular brake band, such as is used in automobiles.

The object of the invention is to provide l5 a machine of the character described which can be manufactured at a small cost and which is adapted to be readily installed in operative position and which can be manually operated to perform the punching and 50 riveting operations with a very slight amount of skill.

Referring to the drawings Figure 1 is a front elevation of my improved punching and riveting machine, the

5 treadle and a portion of the actuating member which connects the treadle to the punch and rivet plungers, being omitted.

Fig. 2 is a side elevation of the same as viewed from the right of Figure 1.

) Fig. 3 is a sectional plan taken on line 3-3 of Fig. 2.

' Fig. 4 is a sectional detail taken on line 44, Fig 2.

Like numerals refer to likeparts throughout the several views of the drawings.

In the drawings, 5 is the frame of the machine which is provided with horizontal flanges 6, 7 and :8, and with laterally-extending flanges 9 and lO'at the rear end thereof, by means of which the frame of the machine is fastened by screws or bolts 11 to an upright or standard 12, which is-ordinarily fastened to the wall of the shop in which the machine is set up. The flange 6 is provided with bearings 13 and 14. The flange 7 is provided with bearings 15 and 16. In the bearings 13 and 15 a vertical punch plunger 17 is slidably mounted and to its lower end has fastened a punch 18. A rivet plunger 19 is slidably mounted in the bearings 14 and 16 and has aflixed to its lower end a rivet set 20.

The flange 8 terminates at its forward end Serial No. 676,309.

in a pair of arms 21 and 22 which are spaced apart and serve to support a die 23 and an 5 anvil 24. The plunger 17 is in vertical alignment with the die 23 and the plunger 19 is in vertical alignment with the anvil 24. The plunger 17 has a collar 25 fast thereto whichis normally held against the underside of the flange 6 by a spiral spring 26 which encircles the punch plunger 17 and bears, at its lower end, against the flange 7.

A collar 27 is fastened to the rivet plunger 19 and is normally held against the underside of the flange 6 by a spring 28 which encircles the rivet plunger 19 and bears at its lower end against the upper face of the flange 7.

A simultaneous downward movement is imparted to the punch plunger 17 and the rivet plunger 19 by a lever 29, pivoted at 30 to the frame of the machine. The rear end of the lever 29 is bifurcated to receive the flattened upper end of a tubular member 31, to which it is pivotally connected by a pin 32. The tubular member 31 projects through a chamber 33 provided in the frame 5.

A vertical reciprocatory motion is imparted to the member 31 by a treadle, to which the lower end of said member is pivotally' connected in a manner well known to those skilled in the art, but not shown in the drawings. 55

The front end of the lever 29 has a pair of laterally extending oppositely disposed ears 34 and 35 thereon which, in the operation of the machine, bear against the up per ends ofthepunch plunger 17 and the rivet plunger 19 respectively.

The general operation of the machine hereinbefore specifically described is as follows :The material to be punched and riveted is first placed upon the die 23 and the lever 29 is operated by means of the member 31 and treadle to rock said lever on its pivot 30 and move the cars 34 and 35 downwardly, thus moving the punch plunger 17 and the rivet plunger 19 downwardly and punching a hole in the material which is resting upon the die 23. A rivet is placed in the hole thus punched and the material being operated upon is then positioned upon the rivet anvil 24. The rocking operation of the lever 29is then repeated to bring the die 23 and projects upwardly therefrom and rivet set 20 into contact with the rivet, and said rivet is thus driven against the anvil 24 and clinched in the material.

It will be seen that by the bifurcated or divergent formation of the arms 21 and 22,

forming a portion of the flange 8, which constitutes a work support, that a circular piece or pieces of material, such as the brake band of an automobile wheel, may beplaced upon either the die 23 or the anvil 2-1 and punched or riveted, as' the case may be, without interfering with the rest of the machine, and this operation upon the material in a circular form may be performed either from the outside of the circle inwardly, or from the inside of the circle outwardly. l/Vheii punching from the outside of the circular piece of material inwardly, the said circular piece of material is placed upon the die 23, as illustrated in dotted lines, Fig. 3, with the arm 21 projecting'thereinto, and the material hanging downwardly from the arm 21. If, however, it is desired to punch from the inside of the circular piece of niateri'al, or brake band, outwardly, then the said piece of material is placed upon the around the. flanges 6 and 7,"the punch 18, the punch plunger 17 and the ear 34.

The same-mode of operation may be carried out in relation to the rivet anvil, the

rivet, the rivet plunger and, the arm 35, it being understood that in plan view the front end portionsof' the flanges 6 and T are bifurcated and of similar contour 'to that of the flange 8 with its arms 21 and 22.

I'c laim: 1. A piuiching and riveting machine having, in combination, a frame, a horizontal worksupport terminating at its frontend in a pair of arms, a die on one of said arms, an anvil on the other, a vertical reciprocatory punch plunger in alignmentwithsaid die, a vertical reciprocatory rivet plunger in alignment with said anvil, and a lever'..,

pivoted to said frame and adapted to simultaneously engage the upper ends of said 7 punch and rivet plungers, whereby a down-- ward movement maybe imparted thereto;

2. A punching and riveting machine having, in combination, a frame, a horizontal work support terminatiiig'at its front end in a pair of arms, a die on one of said arms, an anvil on the other, a vertical 'reciproca tory punch plunger in alignment with said die, a vertical reciprocatory rivet plunger in alignment with said anvil, a lever pivoted ing, incomb-ination, a frame, a horizontal work support terminating at its front end in a pair of arms, a die on one of said arms, an anvil on the other, a vertical reciprocatory punch plunger in alignment with said die, a vertical reciprocatory' rivet plunger in alignment with said anvil, and a lever pivoted to said frame and terminating at its front end in a pair of laterally extending oppositely disposed ears adapted to simultaneously engage the upper ends, of said punch'and rivet plungers, whereby a clownward movement may be imparted thereto;

' 1. A punching and riveting machine having, in combination, a frame having a rod receiving chamber, a horizontal. work sup-- port terminating at its front end in a pair 7 of arms, a die on one of said arms, an anvil .on the other. a vertical reciprocatory punch plunger in alignment with said die, a ver-' tical reciprocat-ory rivet plunger in align-' ment with sa1d anvil, a lever pivoted to said frame and adapted to engage the upper ends of said punch and rivet plungers, whereby a downward movement may be imparted thereto, and atubular member flatted 'ofi atits upper end and pivotally connected to the rear end of said lever and projecting downwardly through said frame. In testimony whereof I have hereunto set the chamber provided in my hand in presence of two subscribing 'witi esses.

WILLIAM EDWARD REES.

' Witnesses 7 i i G. JOHNSTON, A. -W. TAYLOR; 

